package cn.edu.just.firstjavaapp.l11;

public class NumberDemo {
    public static void main(String[] args) {
        int x = 10;
        String name = "marry";
        Integer y = 12;  //box 装箱
        int z = x+y;   //unbox 拆箱
        String s = "100";
        int n1 = Integer.parseInt(s,8);
        System.out.println(n1);
        System.out.printf("%10d%s%10.3f%n",10,name,Math.PI);//占位符
        System.out.println(Integer.MIN_VALUE);
    }
}
